Home / 122,140.38-182,899.53-80,461.02

Finding the Fourth Proportional to 122,140.38, 182,899.53 and 80,461.02

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Solution

The fourth proportional to 122,140.38, 182,899.53 and 80,461.02 is: 120,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,140.38 : 182,899.53 = 80,461.02 : x
  2. Step 2: Convert to fraction form
    122,140.38/182,899.53 = 80,461.02/x
  3. Step 3: Cross multiply
    122,140.38x = 182,899.53 × 80,461.02
  4. Step 4: Simplify right side
    122,140.38x = 14,716,282,741.32
  5. Step 5: Solve for x
    x = 14,716,282,741.32/122,140.38
  6. Step 6: Final answer
    x = 120,486.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.